Designed to eliminate serving wear, arrow pinch, and prevent arrows from falling off rest at full draw. Easy to install: Determine desired size loop, cut material if needed. Burn and knot ends to reduce risk of knot slipping. Tie both ends of loop to bowstring serving above and below nocking point using knot shown on packaging. Check loop knot for signs of wear or slipping before shooting. Three 7 1/2″ braided pieces.